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#!/usr/bin/env ruby
# vim: set sw=4 sts=4 et tw=100 :
=begin description
This example demonstrates how to use Mask. It displays all the
mask keys for a particular PackageID.
=end
require 'Paludis'
require 'example_command_line'
include Paludis
exit_status = 0
# We start with an Environment, respecting the user's '--environment' choice.
env = EnvironmentFactory.instance.create(ExampleCommandLine.instance.environment)
# Fetch package IDs for 'sys-apps/paludis'
ids = env[Selection::AllVersionsSorted.new(
Generator::Matches.new(Paludis::parse_user_package_dep_spec("sys-apps/paludis", env, []), nil, []))]
# For each ID:
ids.each do | id |
puts id.to_s + ':'
id.masks.each do |mask|
puts " Key: ".ljust(31) + mask.key
puts " Description: ".ljust(31) + mask.description
# Some Mask subclasses contain more information than others
if mask.kind_of? UserMask
puts " Class: ".ljust(31) + 'UserMask'
elsif mask.kind_of? UnacceptedMask
puts " Class: ".ljust(31) + 'UnacceptedMask'
puts " Unaccepted key: ".ljust(31) + mask.unaccepted_key.raw_name unless mask.unaccepted_key.nil?
elsif mask.kind_of? RepositoryMask
puts " Class: ".ljust(31) + 'RepositoryMask'
puts " Mask key: ".ljust(31) + mask.mask_key.raw_name unless mask.mask_key.nil?
elsif mask.kind_of? UnsupportedMask
puts " Class: ".ljust(31) + 'UnsupportedMask'
puts " Explanation: ".ljust(31) + mask.explanation
elsif mask.kind_of? AssociationMask
puts " Class: ".ljust(31) + 'AssociationMask'
puts " Associated package: ".ljust(31) + mask.associated_package.to_s unless mask.associated_package.nil?
else
puts " Class: ".ljust(31) + 'Unknown'
end
puts
end
puts
end
exit exit_status
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